# Ethercache vs Doyle Guides

The clearest difference is rating: Ethercache at 5.0 against Doyle Guides's 4.3. Ethercache also leads on in-app purchases (none vs 18) and iOS requirement (14.7 vs 16.6). Doyle Guides's advantage is update cadence (monthly vs every 28 months) and ratings volume (50 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Doyle Guides sells 18 in-app purchases, starting at $9.99 per month. Ethercache asks for nothing beyond the download.

Ethercache holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Doyle Guides has 50 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Ethercache's written reviews are positive against 60% of Doyle Guides's, so the app with the better star average is not the one people write more warmly about.

Ethercache ships an update every 28 months, Doyle Guides monthly. The most recent releases landed on June 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Ethercache | Doyle Guides |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ethercache/id411286630/reviews)** | [4.3 (50 ratings)](https://appshunter.io/ios/app/doyle-guides/id6466621237/reviews) |
| Number of ratings | 1 | **50** |
| Positive reviews | 50.0% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 41 MB |
| Requires iOS | **14.7** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PermuSoft Corporation](https://appshunter.io/developer/327241067) | [Chris Doyle Publishing Limited](https://appshunter.io/developer/1707528206) |

## What reviewers say

### Ethercache

[App page](https://appshunter.io/ios/app/ethercache/id411286630)

Create and hide digital messages at real-world locations for others to discover. This app offers a modern take on scavenger hunts and geocaching, allowing global participation.

**Highlights:** Create digital messages at specific locations, Modern twist on geocaching, Global scavenger hunt functionality, User-generated content, Location-based message embedding

**In-app purchases:** none


### Doyle Guides

[App page](https://appshunter.io/ios/app/doyle-guides/id6466621237)

Access comprehensive sailing guides for the southern Caribbean, featuring nautical charts, regulations, services, and points of interest. The app offers an interactive map with user-generated comments and corrections, all free to use. In-app purchases provide access to detailed guide book content.

**Highlights:** Comprehensive sailing guides, Nautical charts and navigation, Interactive satellite map, 3000+ points of interest database, User comments and corrections, Island-specific content bundles

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trinidad & Tobago - 1 month | $9.99 | per month |
| Martinique Sailing Guide | $19.99 | per month |
| St. Lucia Sailing Guide | $19.99 | per month |
| St. Vincent Sailing Guide | $19.99 | per month |
| Grenada Package - 1 month | $19.99 | per month |
| Trinidad Tobago Sailing Guide | $19.99 | per year |
| Martinique Sailing Guide | $24.99 | per year |
| St. Lucia Sailing Guide | $24.99 | per year |
| St. Vincent Sailing Guide | $24.99 | per year |
| Grenada Package - 12 months | $24.99 | per year |
| Southern Leeward Sailing Guide | $24.99 | per month |
| Northern Leeward Sailing Guide | $24.99 | per month |
| Windward Islands Guide | $29.99 | per month |
| BVI Cruising Guide | $29.99 | per year |
| Windward Islands Guide | $39.99 | per year |
| Virgin Islands Cruising Guide | $39.99 | per year |
| Leeward Islands Sailing Guide | $39.99 | per month |
| Leeward Islands Sailing Guide | $59.99 | per year |


## Frequently asked questions

### Is Ethercache free?

Ethercache is free to download, with no in-app purchases.

### Is Doyle Guides free?

Doyle Guides is free to download, with in-app purchases available.

### Which has better reviews, Ethercache or Doyle Guides?

Ethercache is rated higher. Ethercache averages 5.0 out of 5 from 1 ratings, while Doyle Guides averages 4.3 from 50 ratings.

### Do Ethercache or Doyle Guides have ads?

Neither Ethercache nor Doyle Guides shows ads.

### Which is updated more often, Ethercache or Doyle Guides?

Ethercache ships an update every 28 months, and Doyle Guides monthly. Most recently, Ethercache was updated on June 5, 2026 and Doyle Guides on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*